<?php

class Application_Model_GuestbookMapper extends Zend_Db_Table_Abstract {
	
	protected $_dbTable;

	public function setDbTable ( $dbTable ) {
		if ( is_string( $dbTable ) ) {
			$dbTable = new $dbTable();
		}
		if ( ! $dbTable instanceof Zend_Db_Table_Abstract ) {
			throw new Exception( 'Invalid table data gateway provided' );
		}
		$this->_dbTable = $dbTable;
		return $this;
	}

	public function getDbTable () {
		if ( null === $this->_dbTable ) {
			$this->setDbTable( 'Application_Model_DbTable_Guestbook' );
		}
		return $this->_dbTable;
	}

	public function save ( Application_Model_Guestbook $guestbook ) {
		$data = array( 'email' => $guestbook->getEmail(), 'comment' => $guestbook->getComment(), 'created' => date( 'Y-m-d H:i:s' ) );
		if ( null === ($id = $guestbook->getId()) ) {
			unset( $data['id'] );
			$this->getDbTable()->insert( $data );
		} else {
			$this->getDbTable()->update( $data, array( 'id = ?' => $id ) );
		}
	}

	public function find ( $id, Application_Model_Guestbook $guestbook ) {
		$result = $this->getDbTable()->find( $id );
		if ( 0 == count( $result ) ) {
			return;
		}
		$row = $result->current();
		$guestbook->setId( $row->id )->setEmail( $row->email )->setComment( $row->comment )->setCreated( $row->created );
	}

	public function fetchAll () {
		$resultSet = $this->getDbTable()->fetchAll();
		$entries = array();
		foreach ( $resultSet as $row ) {
			$entry = new Application_Model_Guestbook();
			$entry->setId( $row->id )->setEmail( $row->email )->setComment( $row->comment )->setCreated( $row->created );
			$entries[] = $entry;
		}
		return $entries;
	}
}

?>